netdev - Re: [PATCH V3 net-next 4/6] ethtool: extend ringparam setting uAPI with rx_buf

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Date:   Tue, 12 Oct 2021 11:26:37 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Guangbin Huang <huangguangbin2@...wei.com>
Cc:     <davem@...emloft.net>, <mkubecek@...e.cz>, <andrew@...n.ch>,
        <amitc@...lanox.com>, <idosch@...sch.org>, <danieller@...dia.com>,
        <jesse.brandeburg@...el.com>, <anthony.l.nguyen@...el.com>,
        <jdike@...toit.com>, <richard@....at>,
        <anton.ivanov@...bridgegreys.com>, <netanel@...zon.com>,
        <akiyano@...zon.com>, <gtzalik@...zon.com>, <saeedb@...zon.com>,
        <chris.snook@...il.com>, <ulli.kroll@...glemail.com>,
        <linus.walleij@...aro.org>, <jeroendb@...gle.com>,
        <csully@...gle.com>, <awogbemila@...gle.com>, <jdmason@...zu.us>,
        <rain.1986.08.12@...il.com>, <zyjzyj2000@...il.com>,
        <kys@...rosoft.com>, <haiyangz@...rosoft.com>, <mst@...hat.com>,
        <jasowang@...hat.com>, <doshir@...are.com>,
        <pv-drivers@...are.com>, <jwi@...ux.ibm.com>,
        <kgraul@...ux.ibm.com>, <hca@...ux.ibm.com>, <gor@...ux.ibm.com>,
        <johannes@...solutions.net>, <netdev@...r.kernel.org>,
        <lipeng321@...wei.com>, <chenhao288@...ilicon.com>,
        <linux-s390@...r.kernel.org>
Subject: Re: [PATCH V3 net-next 4/6] ethtool: extend ringparam setting uAPI
 with rx_buf_len

On Tue, 12 Oct 2021 21:41:25 +0800 Guangbin Huang wrote:
> @@ -80,7 +83,10 @@ static int rings_fill_reply(struct sk_buff *skb,
>  	     (nla_put_u32(skb, ETHTOOL_A_RINGS_TX_MAX,
>  			  ringparam->tx_max_pending) ||
>  	      nla_put_u32(skb, ETHTOOL_A_RINGS_TX,
> -			  ringparam->tx_pending))))
> +			  ringparam->tx_pending)))  ||
> +	    (ringparam_ext->rx_buf_len &&
> +	     (nla_put_u32(skb, ETHTOOL_A_RINGS_RX_BUF_LEN,
> +			  ringparam_ext->rx_buf_len))))
>  		return -EMSGSIZE;

I think that this chunk belongs in the previous patch.